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CFD modeling of pyrolysis oil combustion using finite rate chemistry
RISE Research Institutes of Sweden, Bioeconomy and Health, Biorefinery and Energy.
Lund University, Sweden.
Lund University, Sweden.
RISE Research Institutes of Sweden, Bioeconomy and Health, Biorefinery and Energy.ORCID iD: 0000-0002-6473-7090
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2021 (English)In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 299, article id 120856Article in journal (Refereed) Published
Abstract [en]

This paper reports the first Computational Fluid Dynamics (CFD) model developed for biomass pyrolysis oil spray combustion using Finite-Rate Chemistry (FRC) approach. To make the CFD calculations feasible, a reduced mechanism for modeling the combustion of biomass Fast Pyrolysis Oil (FPO) based on the POLIMI 1412 mechanism and a model for eugenol oxidation was developed. The reduced mechanism consisted of 200 reactions and 71 species. This level of complexity was found to be a good tradeoff between predictive power and computational cost such that the reduced model could be used in CFD modeling. The predictive power of the reduced mechanism was demonstrated via 0D (adiabatic, premixed, constant pressure reactor), 1D (laminar counterflow flame) and 3D (CFD of a methane-air flat-flame piloted FPO spray flame) calculations. Results from CFD were compared against experimental data from non-intrusive optical diagnostics. The reduced model was successfully used in CFD calculations—the computational cost was approximately 2 orders of magnitude higher than that of a simplified model. Using the reduced mechanism, the concentration of pollutants, minor combustion products, and flame radicals could be predicted—this is added capability compared to already existing models. The CFD model using the reduced mechanism showed quantitative predictive power for major combustion products, flame temperature, some pollutants and temperature, and qualitative predictive power for flame radicals and soot. © 2021 The Authors

Place, publisher, year, edition, pages
Elsevier Ltd , 2021. Vol. 299, article id 120856
Keywords [en]
Biomass, Chemical kinetics, Computational Fluid Dynamics, Fast Pyrolysis Oil, Finite-Rate Chemistry, Laser diagnostics, Spray combustion
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:ri:diva-53008DOI: 10.1016/j.fuel.2021.120856Scopus ID: 2-s2.0-85105060454OAI: oai:DiVA.org:ri-53008DiVA, id: diva2:1557498
Note

Funding details: Energimyndigheten; Funding details: Energimyndigheten, EM 44110-1; Funding text 1: The financial support of the Swedish Energy Agency (Energimyndigheten) through the project “Computational Optimization of Gas Turbine Combustors Firing Biomass Fast Pyrolysis Oil” (EM 44110-1) and the Swedish Government through Bio4Energy program is greatly acknowledged

Available from: 2021-05-26 Created: 2021-05-26 Last updated: 2023-05-19Bibliographically approved

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Ögren, YngveWiinikka, Henrik

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